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Letters Patent 70,763, dated November 12, 1867.

IMPROVEMENT 1N' CARRIAGE-mex.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, ISAAC VARNEY, of Kenncbnnk, in the county of York, and State of Maine, have invented i a newand useful improved Carriage-Jack; and I hereby declare the following to be a full, clear, and exact description thereof, which will enable others' to make and use my invention, reference being had to theaceomlpanying drawings, forming part o'f this specification, inwhich is shown a side sectional elevation oi' my invention, which exhibits the different parts or devices by which the machineis operated.

A shows the base upon which the device rests, and to which it is secured by screws. B is a tube or cylinder, with a hollow oi' hole in the centre to receive the. toothed arm C, which arm moves easily up or down inq the hollow of the 'll'Pright tube or envelope. a is a projecting casing from one side ot' the tube, which projection receives the geared-wheel b which'tnrns on anraxis, o, fixed in and' passing through the sides of the projecting easing a. The geared wheel L matches into the teeth on the arm c, as illustrated. D is an arm or lever,

bifurcated at one end, so as to pass over the outside of the lprojecting casing a of the wheel Il. The two ends of4 this lever D are attached to the same pivot, e, as the wheel b. On the upper edge of .the casing a is a small aperture to receive the small pawl e hung on the pinj. This pawl is ato prevent the wheell b from turningv in such a direction as-to allow the toothed arm or slide to run downwards; in other words, so to hold the arm as to enable it to sustain the weight -resting upon yit at o. This pawl may, however, belifted out ofthe ratchet or gear b at pleasure, when the' wheel quickly revolving-will let the -toothed sliding arm 'sink down into the hole in the cylinder B. This vpawl hasts axis or pivot in the side of the casing a. On the under side of the lever D is another pan'l, t, having the spring 1, which spring keeps the pawl always pressed into? the teeth of the gear b.' By'the aid of this pawl, as the lever is pressed downward, the wheel b is so turned as to raise th slide C and the'weightresting thereon. At cach elevation of the slide C the pawl e holds it at the point to which it has been raised. .Press upward on the pawl t, and toward the cylinder on the pawl e, and the geared wheel b, being thus relieved, will quickly revolve and allow the toothed slide C to dropinto the hole in the cylinder. The cylinder is made by casting, aswell as the slide and gear.

I do not claim any of the separate parts by themselves, or inp'any arrangement but-the one herein', set forth for the specified purposes. `v Y I do not claim a lever-jack consisting of a frame, with a rack-bar placed therein, and operated bymeans of a wheel -and lever, as set -forth in the rejected applicationl of J. G. Kindleberger, August 17, 1867, b'ut'my iinvention'relates to a convenient and novel arrangement of the devices described in this specification. The arrangement of the 'two pawls t e is ydifferent fromthe case of Kindleberger.

v What I claim as my invention, and desire to secure by Letters Patent, isv The arrangement and combination of thearm D, toothed slide C, gear b, casinga, centrally-pivoted pawl e, and spring-pawl t r on the hollow cylinder B, substantially as and for the purposes set forth. p

l ISAAC VARNEY. Witnesses:

WILLIAM H. CLIFFORD, WM. TRANK SEAVEY. 

